NiMoCo layered double hydroxides for electrocatalyst and supercapacitor electrode

Hengqi Liu; Depeng Zhao; Ying Liu; Yongli Tong; Xiang Wu; Guozhen Shen

doi:10.1007/s40843-020-1442-3

NiMoCo layered double hydroxides for electrocatalyst and supercapacitor electrode

Hengqi Liu, Depeng Zhao, Ying Liu, Yongli Tong, Xiang Wu^*, Guozhen Shen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

65 Citations (Scopus)

Abstract

Non-noble-metal electrode materials with high durability and efficiency have become the frontiers of energy conversion and storage fields. However, conventional electrode materials often show high overpotential and low conductivity. To solve this problem, we fabricate a NiMo_xCo_2−x layered double hydroxide (LDH)/Ni foam (NF) product through a facile hydrothermal route. The as-prepared NiMo-Co-LDH/NF catalyst possesses an overpotential of 123 mV for hydrogen evolution reaction (HER) at 10 mA cm⁻² and 279 mV for oxygen evolution reaction (OER) at 20 mA cm⁻². The as obtained product exhibits excellent overall water splitting performances. Meanwhile, as the electrode material for supercapacitor, it delivers high specific capacitance and excellent cyclic performance. The asymmetric supercapacitor assembled with NiMoCo-LDH/NF//active carbon exhibits 93% of its initial capacity after 8000 cycles.

Translated title of the contribution	基于NiMoCo层状双金属氢氧化物的电催化剂和超级电容器电极
Original language	English
Pages (from-to)	581-591
Number of pages	11
Journal	Science China Materials
Volume	64
Issue number	3
DOIs	https://doi.org/10.1007/s40843-020-1442-3
Publication status	Published - Mar 2021
Externally published	Yes

Keywords

energy density
hydrogen evolution reaction
layered double hydroxide
overall water splitting
oxygen evolution reaction
supercapacitor

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/s40843-020-1442-3

Cite this

@article{b7f917dabf24424683e66ac8c668edeb,

title = "NiMoCo layered double hydroxides for electrocatalyst and supercapacitor electrode",

abstract = "Non-noble-metal electrode materials with high durability and efficiency have become the frontiers of energy conversion and storage fields. However, conventional electrode materials often show high overpotential and low conductivity. To solve this problem, we fabricate a NiMoxCo2−x layered double hydroxide (LDH)/Ni foam (NF) product through a facile hydrothermal route. The as-prepared NiMo-Co-LDH/NF catalyst possesses an overpotential of 123 mV for hydrogen evolution reaction (HER) at 10 mA cm−2 and 279 mV for oxygen evolution reaction (OER) at 20 mA cm−2. The as obtained product exhibits excellent overall water splitting performances. Meanwhile, as the electrode material for supercapacitor, it delivers high specific capacitance and excellent cyclic performance. The asymmetric supercapacitor assembled with NiMoCo-LDH/NF//active carbon exhibits 93% of its initial capacity after 8000 cycles.",

keywords = "energy density, hydrogen evolution reaction, layered double hydroxide, overall water splitting, oxygen evolution reaction, supercapacitor",

author = "Hengqi Liu and Depeng Zhao and Ying Liu and Yongli Tong and Xiang Wu and Guozhen Shen",

note = "Publisher Copyright: {\textcopyright} 2020, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.",

year = "2021",

month = mar,

doi = "10.1007/s40843-020-1442-3",

language = "English",

volume = "64",

pages = "581--591",

journal = "Science China Materials",

issn = "2095-8226",

publisher = "Science China Press",

number = "3",

}

TY - JOUR

T1 - NiMoCo layered double hydroxides for electrocatalyst and supercapacitor electrode

AU - Liu, Hengqi

AU - Zhao, Depeng

AU - Liu, Ying

AU - Tong, Yongli

AU - Wu, Xiang

AU - Shen, Guozhen

PY - 2021/3

Y1 - 2021/3

N2 - Non-noble-metal electrode materials with high durability and efficiency have become the frontiers of energy conversion and storage fields. However, conventional electrode materials often show high overpotential and low conductivity. To solve this problem, we fabricate a NiMoxCo2−x layered double hydroxide (LDH)/Ni foam (NF) product through a facile hydrothermal route. The as-prepared NiMo-Co-LDH/NF catalyst possesses an overpotential of 123 mV for hydrogen evolution reaction (HER) at 10 mA cm−2 and 279 mV for oxygen evolution reaction (OER) at 20 mA cm−2. The as obtained product exhibits excellent overall water splitting performances. Meanwhile, as the electrode material for supercapacitor, it delivers high specific capacitance and excellent cyclic performance. The asymmetric supercapacitor assembled with NiMoCo-LDH/NF//active carbon exhibits 93% of its initial capacity after 8000 cycles.

AB - Non-noble-metal electrode materials with high durability and efficiency have become the frontiers of energy conversion and storage fields. However, conventional electrode materials often show high overpotential and low conductivity. To solve this problem, we fabricate a NiMoxCo2−x layered double hydroxide (LDH)/Ni foam (NF) product through a facile hydrothermal route. The as-prepared NiMo-Co-LDH/NF catalyst possesses an overpotential of 123 mV for hydrogen evolution reaction (HER) at 10 mA cm−2 and 279 mV for oxygen evolution reaction (OER) at 20 mA cm−2. The as obtained product exhibits excellent overall water splitting performances. Meanwhile, as the electrode material for supercapacitor, it delivers high specific capacitance and excellent cyclic performance. The asymmetric supercapacitor assembled with NiMoCo-LDH/NF//active carbon exhibits 93% of its initial capacity after 8000 cycles.

KW - energy density

KW - hydrogen evolution reaction

KW - layered double hydroxide

KW - overall water splitting

KW - oxygen evolution reaction

KW - supercapacitor

UR - http://www.scopus.com/inward/record.url?scp=85090983233&partnerID=8YFLogxK

U2 - 10.1007/s40843-020-1442-3

DO - 10.1007/s40843-020-1442-3

M3 - Article

AN - SCOPUS:85090983233

SN - 2095-8226

VL - 64

SP - 581

EP - 591

JO - Science China Materials

JF - Science China Materials

IS - 3

ER -

NiMoCo layered double hydroxides for electrocatalyst and supercapacitor electrode

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this